package cn.tedu.jdbc;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.Statement;
import java.util.Scanner;


//                                          删除Demo
public class JDBCDemo3 {
    public static void main(String[] args) throws Exception {
     /*   Scanner scan=new Scanner(System.in);
        System.out.println("请输入你注销的用户");
        String userName=scan.nextLine();


        Class.forName("com.mysql.cj.jdbc.Driver");
        Connection connection = DriverManager.getConnection(
                "jdbc:mysql://localhost:3306/tedu?characterEncoding=utf8&useSSL=false&serverTimezone=Asia/Shanghai&rewriteBatchedStatements=true",
                "root",
                "root"
        );
        Statement statement = connection.createStatement();
        String sql="delete from userinfo where username='"+userName+"'";
        int i = statement.executeUpdate(sql);
        if (i>0){
            System.out.println("注销成功！");
        }else{
            System.out.println("用户名不存在，注销失败！");
        }*/
        Scanner scan=new Scanner(System.in);
        System.out.println("请输入你需要注销的用户名！");
        String userName=scan.nextLine();
        Class.forName("com.mysql.cj.jdbc.Driver");
        Connection connection = DriverManager.getConnection(
                "jdbc:mysql://localhost:3306/tedu?characterEncoding=utf8&useSSL=false&serverTimezone=Asia/Shanghai&rewriteBatchedStatements=true",
                "root",
                "root"
        );
        Statement statement = connection.createStatement();
        String sql="delete from userinfo where username='"+userName+"'";
        int i = statement.executeUpdate(sql);
        if (i>0){
            System.out.println("注销成功！");
        }else{
            System.out.println("用户名不存在，注销失败！");
        }
        connection.close();


    }
}
